GitLab

The "Optional Requirements" section is fine.  The
"VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT" section details how venus goes
out-of-spec and becomes illegal.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <!11277>